Woodbridge Antiques has dated this piece to the 1950s.
The back of the padlock is marked 9ct gold and has a maker's mark: JG&S.

An exceptional and substantial vintage bracelet in super condition and a nice heavy gauge of gold. Fabulous as a gift for any occasion!
Measurements: Length: 7 3/4 inches.
Width: 10.5mm
Weight: 17.5 grams
Weights and measurements are approximate.
Woodbridge Antiques has dated this piece to the 1950s.
Specialists in quality antique silver, fine jewellery & accessories
You can view the stock and full dealer information on the Woodbridge Antiques Profile Page